Abstract
Ketones, one of widely applied moieties in designing electrical and medical materials, commonly converted from the alcohols through the oxidation reactions. However, when alcohols are protected/functionalized, the direct oxidation strategies are substantially curbed. Here we show a highly efficient copper bromide promoted one-step direct oxidation of alkoxy to ketone with the aid of a fullerene pendant. Mechanistic studies unveil that fullerene can serve as an electron poor proceeding the one-step oxidation of alkoxy group to ketone. In the absence of fullerene pendant, the unreachable activation energy threshold hampers the direct oxidation of alkoxy group. In the presence of fullerene pendant, copper bromide oxidized fullerene radical cation can activate neighboring C–H bond of alkoxy moieties, allowing a favorable energy barrier for initiating the direct oxidation of alkoxy group. Produced fullerene-fused ketone indicates high thermal stability, affording the pin-hole free and amorphous electron-transport layer with high electron-transport mobility.
Synthesis of efficient photocatalysts for water oxidation and dye degradation reactions using CoCl2 eutectics